#pragma once
#include<stdio.h>
#include<stdlib.h>
#include<assert.h>
#include"Contacts.h"
typedef struct PersonInfo SeqListType;


typedef struct SeqList {
	SeqListType* arr;
	int size;
	int capacity;
}SL;


void SLInit(SL* ps);
void SLDestroy(SL* ps);
void SLCheckCapacity(SL* ps);
void SLPushBack(SL* ps, SeqListType x);
void SLPushFront(SL* ps, SeqListType x);
void SLShow(SL s);
void SLDelBack(SL* ps);
void SLDelFront(SL* ps);